异烟酸—吡唑啉酮光度法测定水中氰化物方法的探讨

Approach on Determination of Cyanide in Water by ISO- nicotinic Acid-Pyrazolone Photometric Method

在用异烟酸—吡唑啉酮光度法测定水中氰化物时,用氢氧化钠代替N,N一二甲基甲酰胺作为溶剂,配制吡唑啉酮作试 验,结果表明,改进法代替标准法是可行的,且改进后的显色剂较原显色剂稳定。

In iso-nicotinic acid-pyrazdone photometric method, soduim hydroxide was taken place of N, N-dimethyl formamide to form pyrazolone. The result showed that the improved method could be used instead of stardard method.